Also applicable is a recent report of whole brain (and whole spine) RT for medulloblastoma in children, a population believed more vulnerable to cognitive decline from RT. They did not receive chemotherapy, rather RT alone, 36 Gy in 36 fractions (1.0 Gy BID) to the entire brain and spine, followed by a boost to 68 Gy in 68 fractions to the tumor bed, typically posterior fossa. Using the Wechsler Intelligence Scale for Children to give verbal quotient, performance quotient, and full-scale intelligence quotient, cognitive function was preserved for all test domains throughout the study at 3 months, 1 year, and 2 years, with no decline over time.